Boiler Control; Item Universal Temperature Limit, Boiler Reset and Low Water Cut-Off; Type Adjustable; Applicable Standard UL (Canada and US); Overall Dimensions 2.2" Width x 1.8" Depth x 4.5" Height; Input Supply Rating 24 Volt AC at 60 Hertz; Temperature Rating 110 to 200 Deg F (Low Limit), 100 to 220 Deg F (High Limit); Media Handled Water; Inclusions/Features LED Status Light, LWCO Test Button; Application Residential; Burner Contact 50 Volt Amp (Pilot Duty); Warranty 2 Year Limited on Material, Workmanship and Finish Defects from Date of Purchase